There is(are) ______ allomorphemic word(s) in the following words: cats, men, glass, worked.
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目前市场大多数含氟牙膏的氟浓度一般为
A. 100～200mg/kg
B. 500～600mg/kg
C. 1000～1lOOmg/kg
D. 2000～2100mg/kg
E. 3000～3100mg/kg
Social, economic and political changes bring about an increasing number of new words. Which of the following words is related to political changes______
A. Moon walk.
B. Watergate.
C. Mao jackets.
D. Talk show.
表示材料的长度和体积随温度变化的物理量是
A. 弹性模量
B. 韧性
C. 热膨胀系数
D. 导热率
E. 比例极限
Kennedy Ⅰ类缺损应采用
A. 解剖印模法
B. 功能印模法
C. 压力印模法
D. 印模胶印模法
E. 闭口印模法
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